mail fraud - what would you do?

[ClodMaxx]

i have an unsolved dilemma. i ordered over $50 worth of parts from a company and it was sent out via USPS with a delivery confirmation number. i checked the number from work one day to see that the package was delivered at my house at 2:44 pm. i got home, and there was no package.

i went to the post office the next morning, and they said 'sorry, our records show it was delivered'. my mail carrier said she put the package where she normally puts it, which is on my doorstep (on the side of the house).

the package was insured, but no claim can be made once the post office records it as 'delivered'. the only logical explanation is that the package was stolen off my porch.

going forward i'm going to have ALL packages delivered to my work address, but can anyone else think of something that can be done? if i want these same parts, i have to pay a SECOND time, which makes them extremely expensive at this point. they aren't parts i really needed, so i'm debating on just giving up... but is there something else i should try short of interviewing all my neighbors? i'm very frustrated on this one - it's never happened to me before...